@article{GDZPPN002078023,
title = {The Planarity of the Equilateral, Isogonal Pentagon.},
journal = {Elemente der Mathematik},
volume = {27},
year = {1972},
pages = {25-32},
zbl = {0236.50003},
url = {http://dml.mathdoc.fr/item/GDZPPN002078023}
}
Dunitz, J.D.; Waser, J. The Planarity of the Equilateral, Isogonal Pentagon.. Elemente der Mathematik, Tome 27 (1972) pp. 25-32. http://gdmltest.u-ga.fr/item/GDZPPN002078023/